Restoring links leads to complete rereading of all links

After a firefox update it's something needed to restore all the links from a saved local file. If you do so, the extension rereads every single link in every group as soon as you go to the group. That's not why I save the links. My expectation is, that the links (and small previews) will be just inserted to the groups again without rereading. Thats boring ...